42244441 has 4 divisors (see below), whose sum is σ = 42258384. Its totient is φ = 42230500.

The previous prime is 42244421. The next prime is 42244453. The reversal of 42244441 is 14444224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42244441 - 2¹¹ = 42242393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42244421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (10564596).

Almost surely, 2^42244441 is an apocalyptic number.

It is an amenable number.

42244441 is a deficient number, since it is larger than the sum of its proper divisors (13943).

42244441 is an equidigital number, since it uses as much as digits as its factorization.

42244441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942.

The product of its digits is 4096, while the sum is 25.

The square root of 42244441 is about 6499.5723705487. The cubic root of 42244441 is about 348.2757123821.

Adding to 42244441 its reverse (14444224), we get a palindrome (56688665).

The spelling of 42244441 in words is "forty-two million, two hundred forty-four thousand, four hundred forty-one".